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Finding the Fourth Proportional to 369,737.34, 553,146.79 and 280,038.51

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Solution

The fourth proportional to 369,737.34, 553,146.79 and 280,038.51 is: 418,952.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,737.34 : 553,146.79 = 280,038.51 : x
  2. Step 2: Convert to fraction form
    369,737.34/553,146.79 = 280,038.51/x
  3. Step 3: Cross multiply
    369,737.34x = 553,146.79 × 280,038.51
  4. Step 4: Simplify right side
    369,737.34x = 154,902,402,182.79
  5. Step 5: Solve for x
    x = 154,902,402,182.79/369,737.34
  6. Step 6: Final answer
    x = 418,952.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.